It might seem pretty simple to test a subcooler, but leave it to me.
Was looking at one yesterday and trying to test or prove performance. Mostly for my own satisfaction, but also am looking to make this a part of annual testing.
Inlet liquid temp was 66 degrees.
Running full subcooling which was a 5 ton valve, I think, at a 40 degree evaporator temp. I measured 2-5 degrees superheat on the subcooler.
Outlet temp was 67 degrees?
Something doesn't add up here. What am I missing?